Is there some expectation that they sit and watch the whole thing end-to-end with headphones on?

I'd think skipping around and finding a few frames would be more than enough to be like "nope, that's a bad one", flag it, and move on.

I would think the police and prosecutors that follow up would have to see and document that stuff in way more detail, and nobody's talking about their PTSD.

I'm not saying it's not bad, but I think the initial moderation flag has to be one of the least bad of all the people in the pipeline that will have to deal with those cases.